./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec3_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a8e9aa-9380-48a6-87ba-09d787d5d5c6/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a8e9aa-9380-48a6-87ba-09d787d5d5c6/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a8e9aa-9380-48a6-87ba-09d787d5d5c6/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a8e9aa-9380-48a6-87ba-09d787d5d5c6/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec3_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a8e9aa-9380-48a6-87ba-09d787d5d5c6/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a8e9aa-9380-48a6-87ba-09d787d5d5c6/bin/utaipan-verify-DbMuA5NWw2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 34d763a2f472f3a687bfbf36d5640fefeb493025c54d66615a1e88fff5fbc163 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:27:18,877 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:27:19,039 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a8e9aa-9380-48a6-87ba-09d787d5d5c6/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:27:19,045 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:27:19,045 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:27:19,083 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:27:19,088 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:27:19,088 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:27:19,089 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:27:19,089 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:27:19,089 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:27:19,090 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:27:19,090 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:27:19,090 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:27:19,091 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:27:19,091 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:27:19,092 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:27:19,092 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:27:19,092 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:27:19,093 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:27:19,093 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:27:19,097 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:27:19,098 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:27:19,099 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:27:19,100 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:27:19,103 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:27:19,103 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:27:19,104 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:27:19,104 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:27:19,104 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:27:19,105 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:27:19,105 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:27:19,105 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:27:19,106 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:27:19,106 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:27:19,107 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:27:19,107 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:27:19,107 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:27:19,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:27:19,108 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:27:19,108 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:27:19,109 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:27:19,109 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:27:19,110 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:27:19,110 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:27:19,110 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:27:19,114 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:27:19,115 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a8e9aa-9380-48a6-87ba-09d787d5d5c6/bin/utaipan-verify-DbMuA5NWw2/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a8e9aa-9380-48a6-87ba-09d787d5d5c6/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34d763a2f472f3a687bfbf36d5640fefeb493025c54d66615a1e88fff5fbc163 [2024-11-02 12:27:19,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:27:19,455 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:27:19,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:27:19,460 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:27:19,461 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:27:19,462 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a8e9aa-9380-48a6-87ba-09d787d5d5c6/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/product-lines/email_spec3_product34.cil.c Unable to find full path for "g++" [2024-11-02 12:27:21,555 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:27:21,884 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:27:21,885 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a8e9aa-9380-48a6-87ba-09d787d5d5c6/sv-benchmarks/c/product-lines/email_spec3_product34.cil.c [2024-11-02 12:27:21,911 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a8e9aa-9380-48a6-87ba-09d787d5d5c6/bin/utaipan-verify-DbMuA5NWw2/data/b1501a8a3/2d4d12f0f29045dfb8400d24dea94dd4/FLAG56193d069 [2024-11-02 12:27:21,927 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a8e9aa-9380-48a6-87ba-09d787d5d5c6/bin/utaipan-verify-DbMuA5NWw2/data/b1501a8a3/2d4d12f0f29045dfb8400d24dea94dd4 [2024-11-02 12:27:21,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:27:21,931 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:27:21,932 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:27:21,933 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:27:21,938 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:27:21,939 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:27:21" (1/1) ... [2024-11-02 12:27:21,939 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@328cf99e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:21, skipping insertion in model container [2024-11-02 12:27:21,940 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:27:21" (1/1) ... [2024-11-02 12:27:22,035 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:27:22,611 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a8e9aa-9380-48a6-87ba-09d787d5d5c6/sv-benchmarks/c/product-lines/email_spec3_product34.cil.c[43803,43816] [2024-11-02 12:27:22,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:27:22,711 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:27:22,722 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [48] [2024-11-02 12:27:22,724 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [125] [2024-11-02 12:27:22,725 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [444] [2024-11-02 12:27:22,725 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1512] [2024-11-02 12:27:22,725 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1926] [2024-11-02 12:27:22,725 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1961] [2024-11-02 12:27:22,726 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2098] [2024-11-02 12:27:22,726 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2107] [2024-11-02 12:27:22,726 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2124] [2024-11-02 12:27:22,726 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2343] [2024-11-02 12:27:22,727 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2740] [2024-11-02 12:27:22,839 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a8e9aa-9380-48a6-87ba-09d787d5d5c6/sv-benchmarks/c/product-lines/email_spec3_product34.cil.c[43803,43816] [2024-11-02 12:27:22,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:27:22,928 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:27:22,929 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:22 WrapperNode [2024-11-02 12:27:22,929 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:27:22,930 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:27:22,930 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:27:22,930 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:27:22,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:22" (1/1) ... [2024-11-02 12:27:22,986 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:22" (1/1) ... [2024-11-02 12:27:23,064 INFO L138 Inliner]: procedures = 135, calls = 226, calls flagged for inlining = 62, calls inlined = 59, statements flattened = 1135 [2024-11-02 12:27:23,065 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:27:23,066 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:27:23,066 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:27:23,066 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:27:23,080 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:22" (1/1) ... [2024-11-02 12:27:23,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:22" (1/1) ... [2024-11-02 12:27:23,094 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:22" (1/1) ... [2024-11-02 12:27:23,095 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:22" (1/1) ... [2024-11-02 12:27:23,114 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:22" (1/1) ... [2024-11-02 12:27:23,122 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:22" (1/1) ... [2024-11-02 12:27:23,127 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:22" (1/1) ... [2024-11-02 12:27:23,132 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:22" (1/1) ... [2024-11-02 12:27:23,140 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:27:23,146 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:27:23,147 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:27:23,147 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:27:23,148 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:22" (1/1) ... [2024-11-02 12:27:23,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:27:23,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a8e9aa-9380-48a6-87ba-09d787d5d5c6/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:27:23,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a8e9aa-9380-48a6-87ba-09d787d5d5c6/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:27:23,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a8e9aa-9380-48a6-87ba-09d787d5d5c6/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:27:23,232 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-02 12:27:23,232 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-02 12:27:23,232 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-02 12:27:23,232 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-02 12:27:23,232 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-02 12:27:23,233 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-02 12:27:23,233 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-02 12:27:23,233 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-02 12:27:23,233 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-02 12:27:23,233 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-02 12:27:23,233 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-02 12:27:23,234 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-02 12:27:23,234 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-02 12:27:23,234 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-02 12:27:23,234 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-02 12:27:23,234 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-02 12:27:23,234 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-02 12:27:23,235 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-02 12:27:23,235 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-02 12:27:23,235 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-02 12:27:23,235 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-02 12:27:23,235 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-02 12:27:23,236 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-02 12:27:23,236 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-02 12:27:23,236 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-02 12:27:23,236 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-02 12:27:23,236 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-02 12:27:23,237 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-02 12:27:23,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:27:23,237 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-02 12:27:23,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-02 12:27:23,237 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-02 12:27:23,238 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-02 12:27:23,238 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-02 12:27:23,238 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-02 12:27:23,238 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-02 12:27:23,238 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-02 12:27:23,239 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-02 12:27:23,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-02 12:27:23,239 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-02 12:27:23,239 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-02 12:27:23,239 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-02 12:27:23,239 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-02 12:27:23,240 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2024-11-02 12:27:23,240 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2024-11-02 12:27:23,240 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-02 12:27:23,240 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-02 12:27:23,240 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-02 12:27:23,240 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-02 12:27:23,241 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-02 12:27:23,241 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-02 12:27:23,241 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-02 12:27:23,241 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-02 12:27:23,241 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-02 12:27:23,241 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-02 12:27:23,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:27:23,242 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-02 12:27:23,242 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-02 12:27:23,242 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-02 12:27:23,242 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-02 12:27:23,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:27:23,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:27:23,530 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:27:23,532 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:27:24,788 INFO L? ?]: Removed 590 outVars from TransFormulas that were not future-live. [2024-11-02 12:27:24,789 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:27:25,702 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:27:25,704 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:27:25,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:27:25 BoogieIcfgContainer [2024-11-02 12:27:25,705 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:27:25,707 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:27:25,708 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:27:25,711 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:27:25,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:27:21" (1/3) ... [2024-11-02 12:27:25,712 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5affa9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:27:25, skipping insertion in model container [2024-11-02 12:27:25,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:22" (2/3) ... [2024-11-02 12:27:25,713 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5affa9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:27:25, skipping insertion in model container [2024-11-02 12:27:25,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:27:25" (3/3) ... [2024-11-02 12:27:25,715 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product34.cil.c [2024-11-02 12:27:25,735 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:27:25,736 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:27:25,822 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:27:25,831 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@79edef7a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:27:25,831 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:27:25,837 INFO L276 IsEmpty]: Start isEmpty. Operand has 241 states, 134 states have (on average 1.291044776119403) internal successors, (173), 141 states have internal predecessors, (173), 76 states have call successors, (76), 29 states have call predecessors, (76), 29 states have return successors, (76), 74 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-02 12:27:25,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-02 12:27:25,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:27:25,858 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:27:25,858 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:27:25,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:27:25,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1253519128, now seen corresponding path program 1 times [2024-11-02 12:27:25,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:27:25,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550971574] [2024-11-02 12:27:25,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:27:25,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:27:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:27:26,349 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-02 12:27:26,349 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:27:26,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550971574] [2024-11-02 12:27:26,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550971574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:27:26,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:27:26,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:27:26,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987367922] [2024-11-02 12:27:26,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:27:26,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 12:27:26,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:27:26,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 12:27:26,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:27:26,398 INFO L87 Difference]: Start difference. First operand has 241 states, 134 states have (on average 1.291044776119403) internal successors, (173), 141 states have internal predecessors, (173), 76 states have call successors, (76), 29 states have call predecessors, (76), 29 states have return successors, (76), 74 states have call predecessors, (76), 76 states have call successors, (76) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-02 12:27:26,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:27:26,590 INFO L93 Difference]: Finished difference Result 389 states and 521 transitions. [2024-11-02 12:27:26,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 12:27:26,593 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 90 [2024-11-02 12:27:26,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:27:26,605 INFO L225 Difference]: With dead ends: 389 [2024-11-02 12:27:26,606 INFO L226 Difference]: Without dead ends: 237 [2024-11-02 12:27:26,611 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:27:26,614 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:27:26,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 275 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:27:26,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-02 12:27:26,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2024-11-02 12:27:26,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 132 states have (on average 1.2651515151515151) internal successors, (167), 137 states have internal predecessors, (167), 76 states have call successors, (76), 29 states have call predecessors, (76), 28 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-02 12:27:26,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 316 transitions. [2024-11-02 12:27:26,679 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 316 transitions. Word has length 90 [2024-11-02 12:27:26,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:27:26,682 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 316 transitions. [2024-11-02 12:27:26,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-02 12:27:26,684 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 316 transitions. [2024-11-02 12:27:26,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-02 12:27:26,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:27:26,691 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:27:26,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:27:26,692 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:27:26,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:27:26,693 INFO L85 PathProgramCache]: Analyzing trace with hash -513729757, now seen corresponding path program 1 times [2024-11-02 12:27:26,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:27:26,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004714834] [2024-11-02 12:27:26,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:27:26,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:27:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:27:27,092 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-02 12:27:27,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:27:27,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004714834] [2024-11-02 12:27:27,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004714834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:27:27,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:27:27,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:27:27,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211248360] [2024-11-02 12:27:27,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:27:27,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:27:27,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:27:27,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:27:27,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:27:27,098 INFO L87 Difference]: Start difference. First operand 237 states and 316 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-02 12:27:27,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:27:27,314 INFO L93 Difference]: Finished difference Result 384 states and 502 transitions. [2024-11-02 12:27:27,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:27:27,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 91 [2024-11-02 12:27:27,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:27:27,319 INFO L225 Difference]: With dead ends: 384 [2024-11-02 12:27:27,319 INFO L226 Difference]: Without dead ends: 239 [2024-11-02 12:27:27,327 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:27:27,328 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 0 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:27:27,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 543 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:27:27,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-11-02 12:27:27,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2024-11-02 12:27:27,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 134 states have (on average 1.2611940298507462) internal successors, (169), 139 states have internal predecessors, (169), 76 states have call successors, (76), 29 states have call predecessors, (76), 28 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-02 12:27:27,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 318 transitions. [2024-11-02 12:27:27,352 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 318 transitions. Word has length 91 [2024-11-02 12:27:27,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:27:27,353 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 318 transitions. [2024-11-02 12:27:27,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-02 12:27:27,353 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 318 transitions. [2024-11-02 12:27:27,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-02 12:27:27,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:27:27,357 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:27:27,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:27:27,357 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:27:27,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:27:27,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1131173244, now seen corresponding path program 1 times [2024-11-02 12:27:27,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:27:27,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842663980] [2024-11-02 12:27:27,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:27:27,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:27:27,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:27:27,637 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-02 12:27:27,638 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:27:27,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842663980] [2024-11-02 12:27:27,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842663980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:27:27,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:27:27,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:27:27,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428526092] [2024-11-02 12:27:27,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:27:27,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:27:27,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:27:27,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:27:27,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:27:27,643 INFO L87 Difference]: Start difference. First operand 239 states and 318 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-02 12:27:27,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:27:27,954 INFO L93 Difference]: Finished difference Result 513 states and 703 transitions. [2024-11-02 12:27:27,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:27:27,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 107 [2024-11-02 12:27:27,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:27:27,958 INFO L225 Difference]: With dead ends: 513 [2024-11-02 12:27:27,959 INFO L226 Difference]: Without dead ends: 292 [2024-11-02 12:27:27,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:27:27,961 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 59 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:27:27,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 540 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:27:27,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-11-02 12:27:28,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 287. [2024-11-02 12:27:28,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 168 states have (on average 1.3333333333333333) internal successors, (224), 173 states have internal predecessors, (224), 90 states have call successors, (90), 29 states have call predecessors, (90), 28 states have return successors, (87), 86 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-02 12:27:28,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 401 transitions. [2024-11-02 12:27:28,015 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 401 transitions. Word has length 107 [2024-11-02 12:27:28,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:27:28,016 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 401 transitions. [2024-11-02 12:27:28,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-02 12:27:28,016 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 401 transitions. [2024-11-02 12:27:28,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-02 12:27:28,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:27:28,026 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:27:28,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 12:27:28,027 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:27:28,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:27:28,028 INFO L85 PathProgramCache]: Analyzing trace with hash 7538412, now seen corresponding path program 1 times [2024-11-02 12:27:28,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:27:28,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389978433] [2024-11-02 12:27:28,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:27:28,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:27:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:27:28,370 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-02 12:27:28,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:27:28,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389978433] [2024-11-02 12:27:28,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389978433] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:27:28,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860842375] [2024-11-02 12:27:28,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:27:28,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:27:28,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a8e9aa-9380-48a6-87ba-09d787d5d5c6/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:27:28,376 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a8e9aa-9380-48a6-87ba-09d787d5d5c6/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:27:28,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a8e9aa-9380-48a6-87ba-09d787d5d5c6/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:27:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:27:28,917 INFO L255 TraceCheckSpWp]: Trace formula consists of 1062 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:27:28,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:27:29,010 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-02 12:27:29,010 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:27:29,164 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-02 12:27:29,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860842375] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:27:29,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [325082936] [2024-11-02 12:27:29,192 INFO L159 IcfgInterpreter]: Started Sifa with 80 locations of interest [2024-11-02 12:27:29,192 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:27:29,196 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:27:29,201 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:27:29,202 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs